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-rw-r--r--hw/acpi/acpi_interface.c8
-rw-r--r--hw/acpi/cxl.c9
-rw-r--r--hw/acpi/ipmi-stub.c2
-rw-r--r--hw/acpi/ipmi.c53
-rw-r--r--hw/acpi/meson.build2
-rw-r--r--hw/acpi/viot.c107
6 files changed, 99 insertions, 82 deletions
diff --git a/hw/acpi/acpi_interface.c b/hw/acpi/acpi_interface.c
index 6583917b8e..c668d361f6 100644
--- a/hw/acpi/acpi_interface.c
+++ b/hw/acpi/acpi_interface.c
@@ -1,5 +1,6 @@
 #include "qemu/osdep.h"
 #include "hw/acpi/acpi_dev_interface.h"
+#include "hw/acpi/acpi_aml_interface.h"
 #include "qemu/module.h"
 
 void acpi_send_event(DeviceState *dev, AcpiEventStatusBits event)
@@ -18,8 +19,15 @@ static void register_types(void)
         .parent        = TYPE_INTERFACE,
         .class_size = sizeof(AcpiDeviceIfClass),
     };
+    static const TypeInfo acpi_dev_aml_if_info = {
+        .name          = TYPE_ACPI_DEV_AML_IF,
+        .parent        = TYPE_INTERFACE,
+        .class_size = sizeof(AcpiDevAmlIfClass),
+    };
+
 
     type_register_static(&acpi_dev_if_info);
+    type_register_static(&acpi_dev_aml_if_info);
 }
 
 type_init(register_types)
diff --git a/hw/acpi/cxl.c b/hw/acpi/cxl.c
index 31d5235136..2bf8c07993 100644
--- a/hw/acpi/cxl.c
+++ b/hw/acpi/cxl.c
@@ -65,9 +65,8 @@ static void cedt_build_chbs(GArray *table_data, PXBDev *cxl)
  * Interleave ways encoding in CXL 2.0 ECN: 3, 6, 12 and 16-way memory
  * interleaving.
  */
-static void cedt_build_cfmws(GArray *table_data, MachineState *ms)
+static void cedt_build_cfmws(GArray *table_data, CXLState *cxls)
 {
-    CXLState *cxls = ms->cxl_devices_state;
     GList *it;
 
     for (it = cxls->fixed_windows; it; it = it->next) {
@@ -129,9 +128,9 @@ static int cxl_foreach_pxb_hb(Object *obj, void *opaque)
     return 0;
 }
 
-void cxl_build_cedt(MachineState *ms, GArray *table_offsets, GArray *table_data,
+void cxl_build_cedt(GArray *table_offsets, GArray *table_data,
                     BIOSLinker *linker, const char *oem_id,
-                    const char *oem_table_id)
+                    const char *oem_table_id, CXLState *cxl_state)
 {
     Aml *cedt;
     AcpiTable table = { .sig = "CEDT", .rev = 1, .oem_id = oem_id,
@@ -144,7 +143,7 @@ void cxl_build_cedt(MachineState *ms, GArray *table_offsets, GArray *table_data,
     /* reserve space for CEDT header */
 
     object_child_foreach_recursive(object_get_root(), cxl_foreach_pxb_hb, cedt);
-    cedt_build_cfmws(cedt->buf, ms);
+    cedt_build_cfmws(cedt->buf, cxl_state);
 
     /* copy AML table into ACPI tables blob and patch header there */
     g_array_append_vals(table_data, cedt->buf->data, cedt->buf->len);
diff --git a/hw/acpi/ipmi-stub.c b/hw/acpi/ipmi-stub.c
index 8634fb325c..befaf0a882 100644
--- a/hw/acpi/ipmi-stub.c
+++ b/hw/acpi/ipmi-stub.c
@@ -10,6 +10,6 @@
 #include "qemu/osdep.h"
 #include "hw/acpi/ipmi.h"
 
-void build_acpi_ipmi_devices(Aml *table, BusState *bus, const char *resource)
+void build_ipmi_dev_aml(AcpiDevAmlIf *adev, Aml *scope)
 {
 }
diff --git a/hw/acpi/ipmi.c b/hw/acpi/ipmi.c
index 96e48eba15..a20e57d465 100644
--- a/hw/acpi/ipmi.c
+++ b/hw/acpi/ipmi.c
@@ -13,7 +13,7 @@
 #include "hw/acpi/acpi.h"
 #include "hw/acpi/ipmi.h"
 
-static Aml *aml_ipmi_crs(IPMIFwInfo *info, const char *resource)
+static Aml *aml_ipmi_crs(IPMIFwInfo *info)
 {
     Aml *crs = aml_resource_template();
 
@@ -49,7 +49,7 @@ static Aml *aml_ipmi_crs(IPMIFwInfo *info, const char *resource)
         break;
     case IPMI_MEMSPACE_SMBUS:
         aml_append(crs, aml_i2c_serial_bus_device(info->base_address,
-                                                  resource));
+                                                  "^"));
         break;
     default:
         abort();
@@ -62,46 +62,27 @@ static Aml *aml_ipmi_crs(IPMIFwInfo *info, const char *resource)
     return crs;
 }
 
-static Aml *aml_ipmi_device(IPMIFwInfo *info, const char *resource)
+void build_ipmi_dev_aml(AcpiDevAmlIf *adev, Aml *scope)
 {
     Aml *dev;
-    uint16_t version = ((info->ipmi_spec_major_revision << 8)
-                        | (info->ipmi_spec_minor_revision << 4));
+    IPMIFwInfo info = {};
+    IPMIInterface *ii = IPMI_INTERFACE(adev);
+    IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
+    uint16_t version;
 
-    assert(info->ipmi_spec_minor_revision <= 15);
+    iic->get_fwinfo(ii, &info);
+    assert(info.ipmi_spec_minor_revision <= 15);
+    version = ((info.ipmi_spec_major_revision << 8)
+              | (info.ipmi_spec_minor_revision << 4));
 
-    dev = aml_device("MI%d", info->uuid);
+    dev = aml_device("MI%d", info.uuid);
     aml_append(dev, aml_name_decl("_HID", aml_eisaid("IPI0001")));
     aml_append(dev, aml_name_decl("_STR", aml_string("ipmi_%s",
-                                                     info->interface_name)));
-    aml_append(dev, aml_name_decl("_UID", aml_int(info->uuid)));
-    aml_append(dev, aml_name_decl("_CRS", aml_ipmi_crs(info, resource)));
-    aml_append(dev, aml_name_decl("_IFT", aml_int(info->interface_type)));
+                                                     info.interface_name)));
+    aml_append(dev, aml_name_decl("_UID", aml_int(info.uuid)));
+    aml_append(dev, aml_name_decl("_CRS", aml_ipmi_crs(&info)));
+    aml_append(dev, aml_name_decl("_IFT", aml_int(info.interface_type)));
     aml_append(dev, aml_name_decl("_SRV", aml_int(version)));
 
-    return dev;
-}
-
-void build_acpi_ipmi_devices(Aml *scope, BusState *bus, const char *resource)
-{
-
-    BusChild *kid;
-
-    QTAILQ_FOREACH(kid, &bus->children,  sibling) {
-        IPMIInterface *ii;
-        IPMIInterfaceClass *iic;
-        IPMIFwInfo info;
-        Object *obj = object_dynamic_cast(OBJECT(kid->child),
-                                          TYPE_IPMI_INTERFACE);
-
-        if (!obj) {
-            continue;
-        }
-
-        ii = IPMI_INTERFACE(obj);
-        iic = IPMI_INTERFACE_GET_CLASS(obj);
-        memset(&info, 0, sizeof(info));
-        iic->get_fwinfo(ii, &info);
-        aml_append(scope, aml_ipmi_device(&info, resource));
-    }
+    aml_append(scope, dev);
 }
diff --git a/hw/acpi/meson.build b/hw/acpi/meson.build
index cea2f5f93a..f8c820ca94 100644
--- a/hw/acpi/meson.build
+++ b/hw/acpi/meson.build
@@ -29,7 +29,7 @@ acpi_ss.add(when: 'CONFIG_PC', if_false: files('acpi-x86-stub.c'))
 if have_tpm
   acpi_ss.add(files('tpm.c'))
 endif
-softmmu_ss.add(when: 'CONFIG_ACPI', if_false: files('acpi-stub.c', 'aml-build-stub.c', 'ghes-stub.c'))
+softmmu_ss.add(when: 'CONFIG_ACPI', if_false: files('acpi-stub.c', 'aml-build-stub.c', 'ghes-stub.c', 'acpi_interface.c'))
 softmmu_ss.add_all(when: 'CONFIG_ACPI', if_true: acpi_ss)
 softmmu_ss.add(when: 'CONFIG_ALL', if_true: files('acpi-stub.c', 'aml-build-stub.c',
                                                   'acpi-x86-stub.c', 'ipmi-stub.c', 'ghes-stub.c',
diff --git a/hw/acpi/viot.c b/hw/acpi/viot.c
index c1af75206e..4e0bf69067 100644
--- a/hw/acpi/viot.c
+++ b/hw/acpi/viot.c
@@ -10,17 +10,40 @@
 #include "hw/pci/pci.h"
 #include "hw/pci/pci_host.h"
 
-struct viot_pci_ranges {
-    GArray *blob;
-    size_t count;
-    uint16_t output_node;
+struct viot_pci_host_range {
+    int min_bus;
+    int max_bus;
 };
 
+static void build_pci_host_range(GArray *table_data, int min_bus, int max_bus,
+                                 uint16_t output_node)
+{
+    /* Type */
+    build_append_int_noprefix(table_data, 1 /* PCI range */, 1);
+    /* Reserved */
+    build_append_int_noprefix(table_data, 0, 1);
+    /* Length */
+    build_append_int_noprefix(table_data, 24, 2);
+    /* Endpoint start */
+    build_append_int_noprefix(table_data, PCI_BUILD_BDF(min_bus, 0), 4);
+    /* PCI Segment start */
+    build_append_int_noprefix(table_data, 0, 2);
+    /* PCI Segment end */
+    build_append_int_noprefix(table_data, 0, 2);
+    /* PCI BDF start */
+    build_append_int_noprefix(table_data, PCI_BUILD_BDF(min_bus, 0), 2);
+    /* PCI BDF end */
+    build_append_int_noprefix(table_data, PCI_BUILD_BDF(max_bus, 0xff), 2);
+    /* Output node */
+    build_append_int_noprefix(table_data, output_node, 2);
+    /* Reserved */
+    build_append_int_noprefix(table_data, 0, 6);
+}
+
 /* Build PCI range for a given PCI host bridge */
-static int build_pci_range_node(Object *obj, void *opaque)
+static int enumerate_pci_host_bridges(Object *obj, void *opaque)
 {
-    struct viot_pci_ranges *pci_ranges = opaque;
-    GArray *blob = pci_ranges->blob;
+    GArray *pci_host_ranges = opaque;
 
     if (object_dynamic_cast(obj, TYPE_PCI_HOST_BRIDGE)) {
         PCIBus *bus = PCI_HOST_BRIDGE(obj)->bus;
@@ -30,34 +53,31 @@ static int build_pci_range_node(Object *obj, void *opaque)
 
             pci_bus_range(bus, &min_bus, &max_bus);
 
-            /* Type */
-            build_append_int_noprefix(blob, 1 /* PCI range */, 1);
-            /* Reserved */
-            build_append_int_noprefix(blob, 0, 1);
-            /* Length */
-            build_append_int_noprefix(blob, 24, 2);
-            /* Endpoint start */
-            build_append_int_noprefix(blob, PCI_BUILD_BDF(min_bus, 0), 4);
-            /* PCI Segment start */
-            build_append_int_noprefix(blob, 0, 2);
-            /* PCI Segment end */
-            build_append_int_noprefix(blob, 0, 2);
-            /* PCI BDF start */
-            build_append_int_noprefix(blob, PCI_BUILD_BDF(min_bus, 0), 2);
-            /* PCI BDF end */
-            build_append_int_noprefix(blob, PCI_BUILD_BDF(max_bus, 0xff), 2);
-            /* Output node */
-            build_append_int_noprefix(blob, pci_ranges->output_node, 2);
-            /* Reserved */
-            build_append_int_noprefix(blob, 0, 6);
-
-            pci_ranges->count++;
+            const struct viot_pci_host_range pci_host_range = {
+                .min_bus = min_bus,
+                .max_bus = max_bus,
+            };
+            g_array_append_val(pci_host_ranges, pci_host_range);
         }
     }
 
     return 0;
 }
 
+static gint pci_host_range_compare(gconstpointer a, gconstpointer b)
+{
+    struct viot_pci_host_range *range_a = (struct viot_pci_host_range *)a;
+    struct viot_pci_host_range *range_b = (struct viot_pci_host_range *)b;
+
+    if (range_a->min_bus < range_b->min_bus) {
+        return -1;
+    } else if (range_a->min_bus > range_b->min_bus) {
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
 /*
  * Generate a VIOT table with one PCI-based virtio-iommu that manages PCI
  * endpoints.
@@ -72,19 +92,22 @@ void build_viot(MachineState *ms, GArray *table_data, BIOSLinker *linker,
     int viommu_off = 48;
     AcpiTable table = { .sig = "VIOT", .rev = 0,
                         .oem_id = oem_id, .oem_table_id = oem_table_id };
-    struct viot_pci_ranges pci_ranges = {
-        .output_node = viommu_off,
-        .blob = g_array_new(false, true /* clear */, 1),
-    };
+    GArray *pci_host_ranges =  g_array_new(false, true,
+                                           sizeof(struct viot_pci_host_range));
+    struct viot_pci_host_range *pci_host_range;
+    int i;
 
     /* Build the list of PCI ranges that this viommu manages */
-    object_child_foreach_recursive(OBJECT(ms), build_pci_range_node,
-                                   &pci_ranges);
+    object_child_foreach_recursive(OBJECT(ms), enumerate_pci_host_bridges,
+                                   pci_host_ranges);
+
+    /* Sort the pci host ranges by min_bus */
+    g_array_sort(pci_host_ranges, pci_host_range_compare);
 
     /* ACPI table header */
     acpi_table_begin(&table, table_data);
     /* Node count */
-    build_append_int_noprefix(table_data, pci_ranges.count + 1, 2);
+    build_append_int_noprefix(table_data, pci_host_ranges->len + 1, 2);
     /* Node offset */
     build_append_int_noprefix(table_data, viommu_off, 2);
     /* Reserved */
@@ -105,9 +128,15 @@ void build_viot(MachineState *ms, GArray *table_data, BIOSLinker *linker,
     build_append_int_noprefix(table_data, 0, 8);
 
     /* PCI ranges found above */
-    g_array_append_vals(table_data, pci_ranges.blob->data,
-                        pci_ranges.blob->len);
-    g_array_free(pci_ranges.blob, true);
+    for (i = 0; i < pci_host_ranges->len; i++) {
+        pci_host_range = &g_array_index(pci_host_ranges,
+                                        struct viot_pci_host_range, i);
+
+        build_pci_host_range(table_data, pci_host_range->min_bus,
+                             pci_host_range->max_bus, viommu_off);
+    }
+
+    g_array_free(pci_host_ranges, true);
 
     acpi_table_end(linker, &table);
 }